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f G i vi@ l 9 tegoed 5mm @met @time "rf W "Wwe/ JOHN T. CAMPBELL, OFALTOONA, PENNSYLVANIA. Laim Patent No. 84,410, dated November 24, 186s.

IMPROVEMENT IN 'NUT-PLANERS The Schedule referred to in these LettersPatent and making part of the same.

To all whom it ma/y conce/m:

Beit known that I, J ons T. CAMPBELL, of Altoona, State of Pennsylvania,have invented-a Nut-Facing and Turning-Machine; and I do hereby declarethe following to be afull, c lear, and exact description of the same.

My invention consists of certain mechanism, fully described hereafter,by which a number of nuts can be simultaneously faced and bevelled.

In order to enable others familiar with machinery of this class to makeand use my invention, I will now proceed to describe its constructionand operation, reference being had to the accompanying drawing, whichforms a part of this specification, and in which- Figure l. is avertical section of my nut-facing and turning-machine.

Figure 2, a transverse vertical section,

Figure 3, a plan view, and

Figure 4,' a detached view of part of the machine.

Similar letters refer to similar parts throughout the several views.

A and A are the two end frames of the-machine, and are connectedtogether by a bed-plate, B, on the upper face of which are twolongitudinal dovetailed ribs, a a, adapted to similarly-shaped groovesin the slide B, to which is fitted a transverse slide, E, after the planadopted in constructing ordinary slide-rests for lathes, the last-namedslide having a rack, b, into which gears a pinion, d, on a spindle, e,turningin bearings on the slide.

The slide D may be operated by hand, or by any appropriate appliances.

On each end of the bed-plate is a standard, F, andin one standard turnsythe small end of the spindle G, the large. end of the latter having a;central recess for receiving the pointed end of'a set-screw, f, in theother standard.

In the present instance the spindle is arranged for the reception offour nuts, 1, 2, 3, 4, of different sizes, each nut being screwed intothe spindle, and against a shuulder on the same, as seen in iig. l.

To the slide E are screwed four tools, m, m', m, and

m, on one side` of the spindle, and a single tool, n, on

the opposite yside of the same, the arrangement of these -tools beingbest observed on .reference to lig. 3.

Each of the tools mmm"m has two cutting-edges, one straight and theother bevelled, so that on moving arrows, lig. 3, while the spindle andits nuts are revolving inA a contrary direction, the inclined cutting-.edge of the tool m will bevel the top of the smallest nut, while thestraight cutting-edge will face the base of the adjacentnut next insize, and so on throughout the series of nuts.

A fifthtool, not shown in the drawing, may be used for facing the baseof the smallest nut.

After this simultaneous facing and bevelling of the whole of the nuts,the latter must havea fiat surface formed on their tops. This isaccomplished bythe tool n, which, by aproper manipulation of the slides,can be brought to bear upon each nut in succession, so as to form thedesired dat surface on the tops of the nuts, round the edges of theholes in the same.

It would be needless to describe minutely the advantages of theabove-described machine, as they will. be apparent to all who. arefamiliar with machine-shops, in which large quantities of nuts are used,and in which their rapid completion, ready for use, is an importantdesideratum.

It will be understood that a number of nuts `of the same size may beoperated ou simultaneously, and that.

the nuts, instead of being screwed on to the spindle, may be iittedloosely to the same, with appropriate' distance-pieces between them, theseries of nuts being confined between a shoulder, near one end of thespindie, and a nutonfthe other.

I claim as my invention, and desire to secure by Letters Patentl. Thecombina-tion of one or more tools, m m', and a revolving mandrel, G, allconstructed, arranged, and operating together, substantially as and forthe purpose set forth. o 2. The combination and arrangement of therevolving mandrel G, sliding tool-rest E, edge-planing tool n, and thedouble-edged tools 'm m, all constructed and voperating substantially inthe manner described.

In testimony whereof, I have signed myname to this specification, in thepresence of two subscribingwitnesses.

JOHN T. CAMPBELL. Witnesses:

JAMEs DUNN, JOHN SHOEMAKER.

